CVE-2024-46824 (GCVE-0-2024-46824)

Vulnerability from cvelistv5 – Published: 2024-09-27 12:39 – Updated: 2026-05-11 20:37
VLAI
Title
iommufd: Require drivers to supply the cache_invalidate_user ops
Summary
In the Linux kernel, the following vulnerability has been resolved: iommufd: Require drivers to supply the cache_invalidate_user ops If drivers don't do this then iommufd will oops invalidation ioctls with something like: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000086000004 EC = 0x21: IABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101059000 [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9 Hardware name: linux,dummy-virt (DT) pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c) pc : 0x0 lr : iommufd_hwpt_invalidate+0xa4/0x204 sp : ffff800080f3bcc0 x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000 x23: 0000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0 x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000001000000002 x7 : 0000fffeac1ec950 x6 : 0000000000000000 x5 : ffff800080f3bd78 x4 : 0000000000000003 x3 : 0000000000000002 x2 : 0000000000000000 x1 : ffff800080f3bcc8 x0 : ffff0000c6034d80 Call trace: 0x0 iommufd_fops_ioctl+0x154/0x274 __arm64_sys_ioctl+0xac/0xf0 invoke_syscall+0x48/0x110 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xb4 el0t_64_sync_handler+0x120/0x12c el0t_64_sync+0x190/0x194 All existing drivers implement this op for nesting, this is mostly a bisection aid.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8c6eabae3807e048b9f17733af5e20500fbf858c , < 89827a4de802765b1ebb401fc1e73a90108c7520 (git)
Affected: 8c6eabae3807e048b9f17733af5e20500fbf858c , < a11dda723c6493bb1853bbc61c093377f96e2d47 (git)
Create a notification for this product.
Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.10.10 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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Modules linked in:\\n  CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9\\n  Hardware name: linux,dummy-virt (DT)\\n  pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c)\\n  pc : 0x0\\n  lr : iommufd_hwpt_invalidate+0xa4/0x204\\n  sp : ffff800080f3bcc0\\n  x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000\\n  x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000\\n  x23: 0000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0\\n  x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000\\n  x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8\\n  x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\\n  x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000\\n  x8 : 0000001000000002 x7 : 0000fffeac1ec950 x6 : 0000000000000000\\n  x5 : ffff800080f3bd78 x4 : 0000000000000003 x3 : 0000000000000002\\n  x2 : 0000000000000000 x1 : ffff800080f3bcc8 x0 : ffff0000c6034d80\\n  Call trace:\\n   0x0\\n   iommufd_fops_ioctl+0x154/0x274\\n   __arm64_sys_ioctl+0xac/0xf0\\n   invoke_syscall+0x48/0x110\\n   el0_svc_common.constprop.0+0x40/0xe0\\n   do_el0_svc+0x1c/0x28\\n   el0_svc+0x34/0xb4\\n   el0t_64_sync_handler+0x120/0x12c\\n   el0t_64_sync+0x190/0x194\\n\\nAll existing drivers implement this op for nesting, this is mostly a\\nbisection aid.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommufd: Requiere que los controladores proporcionen las operaciones cache_invalidate_user Si los controladores no hacen esto, iommufd oops invalidar\u00e1 los ioctls con algo como: No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000000 Informaci\u00f3n de aborto de memoria: ESR = 0x0000000086000004 EC = 0x21: IABT (EL actual), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: error de traducci\u00f3n de nivel 0 pgtable de usuario: 4k p\u00e1ginas, VA de 48 bits, 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0000000000000002 x2: 0000000000000000 x1: ffff800080f3bcc8 x0: ffff0000c6034d80 Rastreo de llamadas: 0x0 iommufd_fops_ioctl+0x154/0x274 __arm64_sys_ioctl+0xac/0xf0 anybody_syscall+0x48/0x110 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xb4 el0t_64_sync_handler+0x120/0x12c el0t_64_sync+0x190/0x194 Todos los controladores existentes implementan esta operaci\u00f3n para anidamiento, esto es principalmente una ayuda de bisecci\u00f3n.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.8\",\"versionEndExcluding\":\"6.10.10\",\"matchCriteriaId\":\"4FAFFECB-D55B-4130-801C-AE52B8A6B1BA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/89827a4de802765b1ebb401fc1e73a90108c7520\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.